package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController
@Api(tags = "菜品相关接口")
@RequestMapping("/admin/dish")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> pageDish(DishPageQueryDTO dishPageQueryDTO){
        log.info("菜品分页查询对象：{}",dishPageQueryDTO);
        PageResult pageResult = dishService.pageDish(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    @PostMapping
    @ApiOperation("新增菜品")
    public Result addDish(@RequestBody DishDTO dishDTO){
        log.info("新增菜品对象：{}",dishDTO);
        dishService.addDish(dishDTO);
        //新增后会修改状态,删除对应的redis缓存
        String key = "dish_" + dishDTO.getCategoryId();
        cleanCache(key);

        return Result.success();
    }

    @DeleteMapping
    @ApiOperation("批量删除菜品")
    public Result deleteDish(@RequestParam List<Long> ids){
        log.info("删除菜品的ids:{}",ids);
        dishService.deleteDishBatch(ids);
        //批量删除后，清除所有redis菜品缓存
        cleanCache("dish_*");
        return Result.success();
    }

    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getDishById(@PathVariable Long id){
        log.info("根据id查询菜品,id为:{}",id);
        DishVO dishVO = dishService.getDishById(id);
        return Result.success(dishVO);
    }

    @PutMapping
    @ApiOperation("修改菜品")
    public Result updateDish(@RequestBody DishDTO dishDTO){
        log.info("修改菜品,请求参数：{}",dishDTO);
        dishService.updateDish(dishDTO);
        cleanCache("dish_*");
        return Result.success();
    }

    @PostMapping("/status/{status}")
    @ApiOperation("菜品起售、停售")
    public Result startOrStopDish(@PathVariable Integer status,Long id){
        log.info("菜品起售停售：{},{}",status,id);
        dishService.startOrStopDish(status,id);
        cleanCache("dish_*");
        return Result.success();
    }

    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(Long categoryId){
        List<Dish> list = dishService.list(categoryId);
        return Result.success(list);
    }

    /**
     * 清除缓存
     * @param pattern
     */
    private void cleanCache(String pattern){
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
